The Sombrero Galaxy is located roughly 30 million light-years from the Milky Way and is moving away from the Milky Way at a speed of 1000 km/s. If we observe absorption by sodium at a wavelength of 589.0 nm in a laboratory on Earth, at what wavelength do we observe the same sodium absorption in the spectrum of the Sombrero Galaxy?

Asap 1. which surface feature of the moon is characterized by mountainous areas? question options: maria terrae regolith craters 2.which statement describes surface features called maria on the moon? question options: layers of dust and rock deep areas of cooled lava deep, rocky and barren valleys highlands and mountainous areas

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

What is the temperature in degrees celsius of a substance with a tempature of 49k